Fireplace air blasting



Dec. 2l, 1937. o, Q NILSQN 2,103,171

FIREPLACE AIR BLASTING Filed Jan. 19, 1937 2 Sheets-Sheet l ATTORNEY Dec. 21, 1937. V l O, NILSON 2,103,171

FIREPLACE AIR BLASTING Filed Jan. 19, 1957 2 Sheets-Sheet 2 INVENTOR ATTORNEYS CII Patented Dec. 21, 1937 YUNITED STATES rArE-NT oFFic 4 4 Claims.

This invention relates to an air blast for fireplaces and has for the primary object the provision of a device of this character which may be easily built into a fireplace to direct air into the burning fuel and which creates a forced draft to bring about thorough combustion of the fuel so that maximum heat will be derived therefrom and which may receive the air from the room in which the fireplace is located or from the basement or some other remote place to said fireplace.

With these and other objects in view, this invention consists in certain novel features of construction, combination and arrangement of parts to be hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had to the following description and accompanying drawings, in which Figure 1 is a front elevation, partly in section, illustrating a fireplace equipped with an air blast constructed in accordance with my invention.

Figure 2 is a transverse sectional view taken on the line 2-2 of Figure 1.

Figure 3 is a plan view, partly in section, i1- lustrating the head of the-air blast.

Figure 4 is a sectional view taken on the line 4--4 of Figure 3.

Referring in detail to the drawings, the numeral l indicates a conventional type of fireplace having andirons 2 for supporting fuel in a burning position within the fireplace. However, a grate or similar device may be employed in lieu of the andirons. A hand controlled damper 3' is provided for the fireplace. The base or bottom of the fireplace is equipped with a chute 3 leading to the basement of a building in which the fireplace is located so that ashes may be directed downwardly through said chute into a collecting receptacle. The foregoing description relates to a well-known construction of fireplaces to which my invention is adapted.

Arranged on the bottom of the fireplace is a distributing head 4 tapering towards one end, as clearly shown in Figure 3, and is provided with an inlet opening or neck 5 to which is connected an air pipe 6. The air pipe 6 leads to an air chamber 1, the latter having communication with the room in which the fireplace is located or, if desired, may be located in the basement or some other remote place to the fireplace. A suitable grating 8 may be positioned over the air receiving receptacle 1. The sides of the head are provided with air openings 9 and a pair of air openings l are located adjacent the front of the head and in the top wall thereof and haveV disposed thereover hoods Il acting to direct the air escaping from the openings towards the rear end of the head or the rear portion of the replace. VMarginal fianges I2 are formed on the 5 head and overlie the openings 9 to bring about spreading of the air escaping from the openings.

Hinged within the neck of the head is a damper I3 for the regulating of the passing of air from the pipe 6 into the head. A control elel0 ment I4 is connected with the damper forregulating the position thereof and is preferably of a liexible link construction operating through a key hole slot in the front wall of the head.

In operation, the fire is built upon the andl5 irons or grate and the air passing through the chamber 1, pipe 6 and head will create a forced draft to the fire, thereby assuring complete cornbustion of the fuel and also will aid in the burning of green or unseasoned fuel. The air being taken from the room, as shown in Figure 2, will bring about a complete circulation of air within a room so that the entire room will become heated from the fireplace.

.Having described the invention, I claim:

l. In combination with a fireplace having a fuel supporting means, an air discharge head lo-` cated in the fireplace below the fuel carried by the fuel supporting means, said head tapering towards the rear wall of the fireplace and having air discharge openings formed in the sides thereof and the top Wall adjacent the front end, hoods formed in the top wall over the openings thereof, and means for admitting air to said head.

2. In combination With a fireplace having a fuel supporting means, an air discharge head located in the fireplace below the fuel carried by the fuel supporting means, said head.tapering towards the rear wall of the fireplace and having air discharge openings formed in the sides thereof and the top wall adjacent the front end, hoods formed in the top wall over the openings thereof, an air intake neck formed on the head, an air pipe connected to said neck and having communication with the atmosphere within a room.

3. In combination with a fireplace having a fuel supporting means, an air discharge head located in the replace below the fuel carried by the fuel supporting means, said head tapering towards the rear wall of the fireplace and having air discharge openings formed in the sides thereof and the top wall adjacent the front end, hoods formed in the top Wall over the openings thereof, an air intake neck formed on the head, an air pipe connected to said neck and having communication with the atmosphere within a room, and an adjustable damper located Within the air inlet neck.

4. In combination with a fireplace having a fuel supporting means, an air` discharge head located in the replace below the fuel carried by the fuel supporting means, said head tapering towards the rear wall of the iireplace and having air discharge openings formed in the sides thereof and the top wall adjacent the front end, hoods formed in the top wall over the openings thereof, an air intake neck formed on the head, an air pipe connected to said neck and having communication with the atmosphere Within a room, and an adjustable damper located Within the air inlet neck, said head having marginal flanges overlying the openings in the sides of said. head to cause spreading of air escaping from said 4lastfnameci openings. j OLIVER C. NILSON. 

